Copper posted its first weekly loss since early January as it tumbled from Thursday's five-month high after another delay in the negotriations for a Greek debt bailout package sparked a broader wave or risk aversion.

The Australian dollar slipped 0.3 percent to $1.0748 as the currency extended losses after the Reserve Bank of Australia said in its quarterly policy statement there will be scope for easing if the economy slows materially.

The euro was last at $1.3275, barely changed from late New York levels and a shade below a two-month high of $1.3322 hit overnight. It failed to pierce its 100-day moving average at 1.3330, a level unbreached since late October.